Current rendering output has problem with rendering cells that should be NODATA values:
Looking at the metadata for the source SRTM layer at s3://geotrellis-test/dg-srtm/_attributes/metadata__srtm-wsg84-gps__0.json shows "cellType": "int16" corresponding ShortConstantNoDataCellType which has NoData value -32768
Judging by rendering the actual NoData value is 0. Best solution would be to use Tile.interpretAs to set Short cell type with user defined value of 0.
I'd suggest testing it on California subset with sparkSubmitJobWithMain ingest.ToblerPyramid --orc s3://geotrellis-test/dg-srtm/california.orc --layer ca-tobler --tiny --render --partitions 1584 using this PR #8
To run this in decent amount of time its sufficient to downgrade 100 machines to 20 in the build.sbt.
Potentially changes to render function color map may be required if the result is not immediately correct.
Current rendering output has problem with rendering cells that should be NODATA values:
Looking at the metadata for the source SRTM layer at
s3://geotrellis-test/dg-srtm/_attributes/metadata__srtm-wsg84-gps__0.jsonshows"cellType": "int16"correspondingShortConstantNoDataCellTypewhich has NoData value-32768Judging by rendering the actual NoData value is 0. Best solution would be to use
Tile.interpretAsto setShortcell type with user defined value of 0.I'd suggest testing it on California subset with
sparkSubmitJobWithMain ingest.ToblerPyramid --orc s3://geotrellis-test/dg-srtm/california.orc --layer ca-tobler --tiny --render --partitions 1584using this PR #8To run this in decent amount of time its sufficient to downgrade 100 machines to 20 in the
build.sbt.Potentially changes to render function color map may be required if the result is not immediately correct.